<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .content {
            width: 80%;
            height: 600px;
            background-color: pink;
            margin: 0 auto;
            position: relative;
        }

        #pic {
            width: 100%;
            height: 100%;
        }

        .menu {
            width: 80%;
            height: 30px;
            background-color: green;
            position: absolute;
            top: 50px;
            left: 100px;
            z-index: 2;
        }

        .menu_right {
            width: 150px;
            height: 300px;
            background-color: yellowgreen;
            position: absolute;
            right: 60px;
            top: 50px;
            z-index: 3;
        }
    </style>
</head>

<body>
    <div class="content">
        <img src="../imgs/aaa.jpg" id="pic"">
        <!-- 导航 -->
        <div class=" menu">
    </div>
    <!-- 右边菜单 -->
    <div class="menu_right"></div>

    </div>


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</body>

</html>